| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 126 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 73 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 62 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 56 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 43 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 30 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 29 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 24 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 22 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 22 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 22 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 20 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 18 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 18 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 18 |
| Throttle operating incorrectly |6.2.1f| | 17 |
| Front Brake excessively binding (1.2.1 (f)) | 15 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 15 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 15 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 14 |
| Exhaust excessively deteriorated |7.1.1a| | 14 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 13 |
| Headlamp aim beam image kick up to the offside |1.6| | 13 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Registration plate issues | 12 |
| Rear Brake excessively binding (1.2.1 (f)) | 12 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 12 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 12 |
| Rear Brake disc|s| cracked |3.2.A1g| | 12 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 11 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 10 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 9 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 9 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 9 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 8 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 8 |
| Horn not working |1.7.3a| | 8 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 8 |
| Front Brake excessively binding |1.2.1 |f|| | 8 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 7 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 7 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 7 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 7 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 6 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 6 |
| Direction indicators not working |1.5.1c| | 6 |
| Steering headbearing has excessive free play |2.2.2| | 6 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 6 |
| Stop lamp remains on when the brake is released |1.3.1e| | 6 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 6 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 6 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 6 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 6 |
| Front Steering headbearing has excessive free play |2.2.2| | 6 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 5 |
| Offside Front Direction indicators not working |1.5.1c| | 5 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 5 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 4 |
| Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 4 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Motorcycle structure excessively corroded |6.1.1a| | 4 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 4 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 4 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 4 |